A: A full suite of PowerShell cmdlets for SCSM is available on CodePlex at http://smlets.codeplex.com/. Once you download and install it, just run the command

Import-Module SMLets

to use them. A full list of the available commands can be found by running the command

Get-SCSMCommand

If you have trouble running the cmdlets or the import, you can change your execution policy to unrestricted using the command

Set-ExecutionPolicy unrestricted

With the cmdlets, you can do almost anything with Service Manager, including actions that can't be done in the Service Manager console, such as deleting certain types of work item.